FIELD: oil and gas industry.
SUBSTANCE: invention relates to units using piston compressors in oil and gas industry, in particular, for structural use of pressure pulsations. Apparatus comprises a device for gas circulation and a controller. In device for gas circulation there is a channel through which gas circulates between piston compressor and receiver, serving as a damper, which separates piston compressor from installation. Device for gas circulation is made so that its resonance frequency is substantially equal to frequency of execution of compression cycles in piston compressor. Controller is configured to control time of switching of valve, located between piston compressor and device for gas circulation.
EFFECT: higher volumetric efficiency of piston compressor.
10 cl, 10 dwg
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